Malicious PDF — malware analysis report

Static analysis result for SHA-256 69eac98576c88cbf…

MALICIOUS

PDF

39.7 KB Created: 2020-08-21 23:14:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 99eb8a9ceefc1a5a9d0ab1f323ee3ddf SHA-1: 6dae85029982e7771be67f7ce9166653a707206b SHA-256: 69eac98576c88cbf59c217a111b26f29c25c6e1d9c1c2f1bc7487a7c362d1141
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and references to 'fletching guide osrs calc', suggesting a lure to trick users into clicking the link. The presence of numerous external PDF links, many pointing to Shopify domains, indicates a link farm or SEO poisoning attempt to distribute the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=fletching+guide+osrs+calc
    • http://difitewe.bernardramsdale.com/uploads/1/3/1/3/131398591/litomolib_gavabiru_zezoju.pdf
    • http://files.margueriteperret.com/uploads/1/3/0/7/130776177/rumemoxege.pdf
    • http://files.pennyormsbee.ca/uploads/1/3/0/7/130775232/2738980.pdf
    • http://kazuf.arc-sf.com/uploads/1/3/1/3/131379296/4927828.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0429/1549/6092/files/pamezuvosivasixigikunazup.pdf
    • https://cdn.shopify.com/s/files/1/0433/4914/7816/files/fabokozatobitekazi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/56180715264.pdf
    • https://cdn.shopify.com/s/files/1/0449/1840/7335/files/rosidisigesegenukipiro.pdf
    • https://cdn.shopify.com/s/files/1/0439/9346/4990/files/giforetiweraxetakag.pdf
    • https://cdn.shopify.com/s/files/1/0431/2809/4882/files/buprenorfina_en_infusion.pdf
    • https://cdn.shopify.com/s/files/1/0431/2793/1034/files/28361844148.pdf
    • https://cdn.shopify.com/s/files/1/0434/8860/8418/files/mw3_cheats_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0438/5947/6630/files/fagimupunubowexod.pdf
    • https://cdn.shopify.com/s/files/1/0440/6837/2632/files/97869635426.pdf
    • https://cdn.shopify.com/s/files/1/0438/0730/9984/files/95414162658.pdf
    • https://cdn.shopify.com/s/files/1/0434/0193/7063/files/kimimadefemudu.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e79.bin
0d0ba9096236cfda662678b34967a12a609b58688d9d03327cb8122c2fdedb4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E79 5156 bytes
font_01_sfnt_off00006ff6.bin
aca9ce356224170053f15cffd3f840dce3cd31256db0cfad71b17fdaeea7fd57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF6 10024 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.